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https://issues.apache.org/jira/browse/HBASE-3189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928423#action_12928423
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stack commented on HBASE-3189:
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Committed the addendum to TRUNK just now.
> Stagger Major Compactions
> -------------------------
>
> Key: HBASE-3189
> URL: https://issues.apache.org/jira/browse/HBASE-3189
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Reporter: Nicolas Spiegelberg
> Assignee: Nicolas Spiegelberg
> Priority: Minor
> Fix For: 0.90.0
>
> Attachments: HBASE-3189-addendum.patch, HBASE-3189.patch
>
>
> For pre-split regions, we can get into a case where the oldest HFile in a
> Store is pretty large and will not encounter a compaction within the 24hr
> major compact window. If that's the case, we don't want multiple multi-GB
> major compactions being triggered at the same time. Add ability to stagger
> the major compaction expiration window.
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